1749060

Appears in sequences

• Binomial coefficients C(n,78).at n=4A017742
• Binomial coefficients C(82,n).at n=4A017798
• Doubly pentagonal numbers: a(n) = n*(3*n-2)*(3*n-1)*(3*n+1)/8.at n=27A232713
• a(n) = binomial(prime(n+1)-1, prime(n)-1).at n=21A261726